首页 > 光电设备 > 光耦合器/光电耦合器 > TLP291GB-TP.SE

TLP291GB-TP.SE

1 通道光电晶体管光耦合器，CTR 100-400%（GB 级），3750Vrms 隔离，SOP-4，-55~110C，NRND

153100

有效库存
转到查询

Image for reference only

制造商零件：

TLP291GB-TP.SE

包装：

SOP-4 / SO4（2.6 x 7.0 x 2.1 毫米），11-3C1

品牌：
产品类别：
质量承诺
发货与付款
服务与包装
产品手册
您可能感兴趣的其他建议.

LTK070WX40HFM026-QC-REV2-LTK

L-937GE/2GEW

R5F1007EANA#40

PIC16F648A-I/SO

PIC32MX340F512H-80I/PT

STM32F415RGT6TR

MPC860SRVR50D4R2

RK73B2BTTD151J

说明

东芝公司的 TLP291GB-TP.SE 是一款单通道光电晶体管输出光耦合器，采用紧凑型 SOP-4 (SO4) 封装（2.6 x 7.0 x 2.1 mm）。它由一个砷化镓红外发光二极管与一个光电晶体管光耦合组成，可提供 3750 Vrms 的最小隔离电压。GB 等级规定，在 IF=5mA 和 VCE=5V 时，电流传输比 (CTR) 为 100% 至 400%。主要规格：集电极-发射极电压 80V，正向电流 50mA，集电极电流 50mA，VCE（sat）最大值 0.3V，反向电压 5V，总功耗 200mW。开关特性：典型上升时间 2-4us，下降时间 3-7us。工作温度：-55 至 110C。安全认证：UL 1577、cUL、EN 60747-5-5 (VDE)、EN IEC 62368-1 (VDE)、GB 4943.1-2022 (CQC)。蠕变/间隙：最小 5.0 毫米。后缀 TP 表示卷带包装（2500 件/卷），后缀 SE 表示增强型。状态：不建议用于新设计（东芝建议用 TLP291(SE 或 TLP293 代替）。符合 RoHS 规范。.

东芝公司的 TLP291GB-TP.SE 是一款单通道光电晶体管输出光耦合器，采用超薄 SOP-4 (SO4) 封装，尺寸仅为 2.6 x 7.0 x 2.1 mm。该器件由一个砷化镓（GaAs）红外发光二极管（IRED）与一个硅 NPN 光电晶体管光学耦合组成，在输入和输出电路之间提供电隔离。.

GB 等级指定的电流传输比 (CTR) 范围为 100% 至 400%，IF=5mA，VCE=5V，温度为 25C，这意味着光电晶体管集电极电流相当于 LED 正向电流的 1 倍至 4 倍。这一相对较高的 CTR 范围使 GB 级产品适用于输入 LED 电流预算有限的低电流驱动应用，例如微控制器 GPIO 驱动的隔离电路。.

主要电气规格包括：集电极-发射极击穿电压 (VCEO) 最低为 80V，正向额定电流最大为 50mA，集电极额定电流最大为 50mA，IC=2.4mA、IF=8mA 时集电极-发射极饱和电压 (VCE(sat)) 最大为 0.3V，封装总功耗为 200mW。在 IF=5mA 时，输入 LED 正向电压通常为 1.25V，最大额定反向电压为 5V。.

该器件可提供 3750 Vrms 的最小隔离电压（测试时间为 1 分钟），适用于电源、可编程逻辑控制器 (PLC) 和通信接口中的增强绝缘应用。爬电距离和间隙最小均为 5.0 毫米，绝缘厚度最小为 0.4 毫米，符合安全认证光耦合器的结构要求。.

开关特性包括典型的上升时间为 2us，下降时间为 3us（VCC=10V，IC=2mA，RL=100 欧姆时），典型的导通时间为 3us，关断时间为 3us。这些适中的开关速度使该器件适用于信号隔离而非高速数据通信。.

TLP291GB-TP.SE 通过了全面的安全认证：UL 1577（文件号 E67349）、cUL（CSA 组件验收服务第 5A 号）、EN 60747-5-5 (VDE)、EN IEC 62368-1 (VDE) 和 GB 4943.1-2022 (CQC)。VDE 选件（后缀 V4）提供额外认证，最大工作绝缘电压为 707 Vpk，最高允许过电压为 6000 Vpk。.

后缀 TP 表示带卷包装，每卷 2500 件，适用于自动 SMT 组装。后缀 SE 表示具有改进开关特性的增强型版本。注：东芝将 TLP291 标记为不推荐用于新设计，建议将 TLP291(SE 或 TLP293 作为新设计的替代产品。该器件的工作温度范围为 -55C 至 110C，符合 RoHS 规范。.

TLP291GB-TP.SE 作为光电晶体管输出光耦合器工作，将输入电信号转换为光信号，然后再转换回电信号，以实现电路之间的电隔离。.

输入级（LED）：输入端由砷化镓（GaAs）红外发光二极管（IRED）组成。当正向电流 (IF) 流过 LED 时，LED 会发出波长约为 940nm 的红外辐射。在 IF=5mA 时，LED 上的正向压降通常为 1.25V。LED 必须使用一个根据驱动电压计算得出的限流电阻来驱动：R = (VDRIVE - VF) / IF，其中 VF 为 LED 正向电压。信号隔离应用的典型驱动电流范围为 1mA 至 20mA。.

光学耦合：LED 发出的红外光穿过封装内的透明介质绝缘层传播。该绝缘层提供最小厚度为 0.4 毫米的电隔离屏障，可实现 3750 Vrms 的隔离电压。LED 和光电晶体管之间的光耦合效率决定了电流传输比（CTR）。对于 GB 等级，在指定的测试条件下，CTR 的范围为 100% 至 400%，即 IC = CTR x IF。.

输出级（光电晶体管）：输出端由一个硅 NPN 光电晶体管组成。当 LED 发出的红外光子撞击光晶体管的基极-集电极结时，会在基极区域产生电子-空穴对（光电流）。该光电流可作为 NPN 晶体管的基极驱动，从而产生较大的集电极电流。光电晶体管在单个器件中实现了光电检测和电流放大功能，这就是为什么 CTR 可以超过 100%--光电晶体管的电流增益 (hFE) 可以放大初始光电流。.

点击率行为：CTR 并非恒定不变，而是随以下因素变化：(1) 正向电流 IF - CTR 通常在 IF=5-10mA 时达到峰值，在较低和较高电流时均会降低；(2) 温度 - 由于 LED 效率和光电晶体管增益降低，CTR 在温度高于 25C 时会降低；(3) 老化 - 由于 LED 输出衰减，CTR 会随着时间的推移而降低，在额定电流下 10 年内通常为 10-20%。设计余量必须考虑到这些变化，尤其是在使用 GB 级 100% 最小 CTR 时。.

开关行为：光电晶体管的开关速度受限于其相对较大的结面积（高光敏度需要）和电荷存储效应。上升时间 (tr) 和下降时间 (tf) 通常分别为 2-4us 和 3-7us。关断时间比接通时间慢，因为光电晶体管必须在没有专用基极下拉电阻的情况下清除存储的基极电荷。为了加快开关速度，可以增加一个基极-发射极电阻器，或者选择更快的光耦合器结构（如光电二极管+放大器）。.

隔离：电隔离是通过 LED 和光电晶体管芯片之间的物理隔离来实现的，仅通过光耦合来弥合间隙。隔离栅可在 1 分钟内承受 3750 Vrms 的电压，并在工作电压达到额定绝缘电压时提供持续隔离。隔离栅上的寄生电容（通常为 0.5-1pF）限制了共模瞬态抗扰度，而隔离电阻则超过 10^12 欧姆。.

针脚 名称 类型 说明
1 ANODE 输入 LED 阳极；通过限流电阻器连接到驱动电路的正极；正向电流 IF 高达 50mA；IF=5mA 时，正向电压 VF 通常为 1.25V
2 模式 输入 LED 阴极；连接至接地或驱动电路负极；反向电压不得超过 5V
3 EMITTER 输出 光电晶体管发射极；连接至输出电路接地或基准；集电极电流 IC 从集电极（引脚 4）通过负载流向发射极
4 收藏家 输出 光电晶体管集电极；通过上拉电阻连接至输出电源电压；VCEO 最大值为 80V；IC=2.4mA、IF=8mA 时 VCE(sat) 最大值为 0.3V
应用 说明
开关电源反馈 在隔离型反激式/正激式转换器中，将次级侧误差放大器输出与初级侧 PWM 控制器隔离；CTR 范围为 100-400%，可提供足够的环路增益；3750Vrms 隔离电压符合电源供电的安全要求
PLC 数字输入/输出隔离 将 PLC 数字输入/输出通道与现场布线隔离；-55 至 110C 的宽温度范围适合工业环境；VDE 和 UL 认证符合机械安全标准
通信接口隔离 为 RS-232、RS-485、CAN 和其他通信接口提供电隔离；防止互连设备之间出现接地回路；5 毫米的爬电/净空距离符合工业间距要求
微控制器信号隔离 将 MCU GPIO 信号与高压或高噪声电路隔离；GB 级 CTR (100-400%) 允许以 5-10mA IF 直接驱动 MCU 引脚；简单的 4 引脚接口最大限度地减少了元件数量
栅极驱动信号隔离 用于电机驱动器和逆变器的低频 IGBT/MOSFET 栅极驱动隔离；80V VCEO 为栅极驱动电压水平提供裕量；开关速度适用于高达约 100kHz 的 PWM 频率
模型 制造商 兼容性 主要区别
TLP291(SE 东芝 建议更换 封装和引脚布局相同；开关速度提高；SE 版本性能提高；东芝推荐用于新设计的替代品
TLP293 东芝 建议更换 相同的封装尺寸；不同的开关速度；东芝推荐用于新设计的替代品；检查 CTR 排名的可用性
PC817C 夏普/IXYS 功能相似 DIP-4 封装（非 SOP-4）；CTR 200-400%（C 级）；5000Vrms 隔离；通孔安装；不同基底面
EL817C 亿光 功能相似 DIP-4 封装；CTR 200-400%；5000Vrms 隔离；兼容行业标准 PC817；不同封装类型
SFH6156-3T Vishay 功能相似 SOP-4 封装；CTR 100-200%（等级 3）；5300Vrms 隔离度；类似的扁平式设计；不同的 CTR 范围
推荐部件

LTK070WX40HFM026-QC-REV2-LTK

7.0″ IPS TFT LCD, 800×1280, MIPI, 350cd/m², -20~60°C, Portrait

品牌:

封装:

Module 161.6 x 99.75 x 2.60 mm
有库存：
4838pcs

货运周期：3~7 天
最低订购量为 1

转到查询

L-937GE/2GEW

3mm Dual-color LED, Red(617nm)/Green(568nm), 14/14mcd, 60°, White Diffused

品牌:

封装:

3mm T-1 Through Hole (3.2 x 4.6 mm)
有库存：
8120pcs

货运周期：3~7 天
最低订购量为 1

转到查询

R5F1007EANA#40

RL78/G10 MCU, 32MHz, 8KB Flash, 512B RAM, comparator, I2C/SPI, 8-pin DIP, ultra-low power

品牌:

封装:

8-pin DIP (9.3 x 6.5 x 3.8 mm, 2.54mm pitch)
有库存：
22310pcs

货运周期：3~7 天
最低订购量为 1

转到查询

PIC16F648A-I/SO

PIC16 8-bit MCU, 20MHz, 4KB Flash, 256B EEPROM, 2 comparators, EUSART, 18-SOIC, industrial

品牌:

封装:

18-pin SOIC (7.5 x 3.9 x 1.45 mm)
有库存：
12919pcs

货运周期：3~7 天
最低订购量为 1

转到查询

PIC32MX340F512H-80I/PT

PIC32MX 32-bit MCU, 80MHz MIPS32 M4K, 512KB Flash, USB OTG, CAN, 64-LQFP, industrial

品牌:

封装:

64-pin LQFP (10 x 10 x 1.4 mm)
有库存：
26549pcs

货运周期：3~7 天
最低订购量为 1

转到查询

STM32F415RGT6TR

STM32F4 Cortex-M4 MCU, 168MHz, 1MB Flash, crypto engine (AES/HASH), 64-LQFP, industrial, T&R

品牌:

封装:

64-pin LQFP (10 x 10 x 1.4 mm)
有库存：
16959pcs

货运周期：3~7 天
最低订购量为 1

转到查询
质量保证

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • 医疗设备: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

联系我们

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

发货与付款

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
  1. Logistics Partners
  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
  1. Shipping Fee Rules
  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
  1. Shipment Tracking
     

    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

服务与包装

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

Online Inquiry Form

Support Excel, PDF, CSV format files for full BOM list quotation

Submit your component procurement and custom packaging needs via the form below. We will provide a detailed quotation and professional solution within 1–8 working hours.

公司名称
洞察力
工业
所有产品
集成电路
工商设备
离散
内存芯片
MPU 和 MCU